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A tankless water heater sizing calculator determines the required flow rate (GPM) and temperature rise to select the correctly sized unit. Flow rate is the sum of all simultaneous hot water uses; a shower (2.5 GPM) + dishwasher (1.0 GPM) requires a unit capable of 3.5 GPM at the required temperature rise.

Guía paso a paso

  1. 1Input base values
  2. 2System computes results

Ejemplos resueltos

Entrada
Enter the required values
Resultado
Result computed by the formula

Errores comunes a evitar

  • Precision loss
  • Ignoring variables

Preguntas frecuentes

What does this calculator do?

Input base values

How do I use this calculator?

System computes results

Configuración

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